Weighted Average Assumptions Used to Calculate Fair Value of Time Based Stock Option Award (Detail) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 30, 2016 |
Aug. 01, 2015 |
Jul. 30, 2016 |
Aug. 01, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Weighted average fair value | $ 11.88 | $ 11.88 | ||
| Time Based Option Award | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Weighted average fair value | $ 2.88 | $ 3.97 | $ 2.87 | $ 3.98 |
| Expected volatility | 40.00% | 34.00% | 40.00% | 34.00% |
| Expected term (in years) | 5 years 2 months 12 days | 5 years 4 months 24 days | 5 years 2 months 12 days | 5 years 4 months 24 days |
| Risk-free interest rate | 1.20% | 1.60% | 1.30% | 1.60% |
| Expected dividend yield | 2.40% | 1.70% | 2.50% | 1.70% |